Early Period???

Barbara
I need advice!! So, today is 14 DPO and my period isn't due for another 4-5 days. But I was cramping a bit yesterday and woke up to some light spotting and cramps on my right side. I am 28 and I have NEVER gotten my period early. It comes on the exact same day every month and lasts 4 days. SO and I only had sex once on my peek day so no way in my mind I could be pregnant. Could this early bleeding be implantation or just my period coming early for the first time ever? 
Not many other symptoms. I was extremely sick last week, woke up Tuesday just nauseous and throwing up, couldn't eat, headaches and severe back pain. Assumed it was the flu. 
But as of Sunday, my smell has been way too much lol we're house training our newest puppy and I clean up his accident and threw away the paper towel, but could STILL smell the urine the rest of the night all the way in the living room. And then yesterday a coworker was eating chips and the smell of the corn chips made me want to be sick. 
No sore or tender breasts. No more headaches. 
I am SUPER bloated though. 
Help! All signs say early period but since it's never happened before it's making me wonder...

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